Specifically, I am looking for something that will allow me to create setting profiles with details such as 3g on/off, GPS on/off, and wifi on/off in addition to the usual volume, ring, etc settings?

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aTimeTool from mcleaner.com will do some of what you may be looking for. As far as I know, there's not a single JB app that will do everything, you might have to use a combination of 2 to get almost everything working the way you want.

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